Centos install elasticsearch tutorial

The installation of elasticsearch is implemented by ytkah in the search of the laravel e-commerce site. It is not very laborious to solve it through its own search and learning ability. Let's sort out the installation of elasticsearch tutorial. The server is Centos 7. Friends in need can refer to it. Elasticsearch requires java8 or above; we go to https://www.oracle.com/technetwork/java/javase/downloads/index.html to download and install the latest version of java11 jdk, select Accept License Agreement and right-click jdk-11.0.1_linux-x64_bin .rpm copy link, enter command on the command line:

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http:%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie""http://download.oracle.com/otn-pub/java/jdk/11.0.1+13/90cf5d8f270a4347a95050320eef3fb7/jdk-11.0.1_linux-x64_bin.rpm"

Wait for download to complete

Start the installation, install jdk, pay attention to the file name to be consistent with the link

sudo rpm -ivh jdk-10.0.1_linux-x64_bin.rpm

Enter the following command, if you can see the version number, the installation is successful;

java -version

Download the elasticsearch installation, https://www.elastic.co/downloads/elasticsearch, select the RPM file (in this example, elasticsearch-6.4.2.rpm), copy the link, and enter the following command to download:

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.2.rpm

Install elasticsearch, pay attention to the same version number:

sudo rpm -ivh elasticsearch-6.4.2.rpm

Edit configuration items after installation

vim /etc/elasticsearch/elasticsearch.yml

Uncomment the following three lines (remove the # in front);

bootstrap.memory_lock:true
network.host:192.168.0.1
http.port:9200

Pay attention to open ports 9200 and 9300, because some operators will set server security group policies

Then change network.host to localhost

network.host: localhost

Start elasticsearch and enter

sudo systemctl daemon-reload
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch

Then check the 9200 port to check if it started successfully

netstat -plntu

If it still does not start up after half a day, it may be due to insufficient memory.

vim /etc/elasticsearch/jvm.options

Change the memory to less than half of your server's memory, for example, change it to 512M here;

Restart elasticsearch

sudo systemctl restart elasticsearch

Check whether the status is normal

curl 'localhost:9200'

At this point, elasticsearch is installed.

This article is referenced from https://baijunyao.com/article/155